package Example5;

class Student{
    public Student(){
        System.out.println("调用了无参照方法");
    }
}
public class Example5 {
    public static void main(String[] args){
        System.out.println("声明对象...");
        Student stu = null;
        System.out.println("实例化对象...");
       stu = new Student();
    }
}
